<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>th练习</title>
</head>
<body>
    <table border="1px" cellspacing="100px">
        <tr>
            <th>姓名</th>
            <th>年龄</th>
            <th>性别</th>
            <th>家乡</th>
        </tr>
        <tr>
            <th>张三</th>
            <td>18</td>
            <td>男</td>
            <td>河南</td>
        </tr>
        <tr>
            <th>李四</th>
            <td>19</td>
            <td>女</td>
            <td>上海</td>
        </tr>
    </table>
</body>
</html>